Shasha Li

Blockchain-based Crowdsourcing Task Management and Solution Verification Method

2021

Crowdsourcing relies on Internet-wide capability to solve the complicated or large-scale tasks that are difficult to accomplish separately by individuals. However, traditional centralized crowdsourcing systems highly depend on the centralized coordination server to operate, making …

Towards an Efficient and Robust Adversarial Attack Against Neural Text Classifier

2022 · International Journal of Pattern Recognition and Artificial Intelligence

Adversarial attack is a serious threat to neural network-based natural language processing applications. Adversarial attack uses tiny well-crafted perturbations to mislead neural networks. While existing adversarial text attacks can achieve good attack effects, they still …

Span-based joint entity and relation extraction augmented with sequence tagging mechanism

2022 · arXiv (Cornell University)

Span-based joint extraction simultaneously conducts named entity recognition (NER) and relation extraction (RE) in text span form. However, since previous span-based models rely on span-level classifications, they cannot benefit from token-level label information, which has …